MESON Chess Problem Database

Problem Display
PID: 143172 (1n1N4/2pp3p/k1p2R1P/2B5/1P1Np1B1/p2q4/P3Q3/2K5 w - - 0 1)

Bernard, Henry D'Oyly

Social Chess Quarterly (The), 1934

1n1N4/2pp3p/k1p2R1P/2B5/1P1Np1B1/p2q4/P3Q3/2K5

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe2
      • 2.Bxe2#
    • 1...Qc4+
      • 2.Qxc4#
    • 1...Qb5
      • 2.Qxb5#
    • 1...e3
      • 2.Qxd3#
    • 1...d5
      • 2.Bc8#
    • 1...d6
      • 2.Bc8#
  • Tries
    • 1.Bh3?
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qb5
        • 2.Qxb5#
      • 1...e3
        • 2.Qxd3#
      • 1...d5
        • 2.Bc8#
      • 1...d6
        • 2.Bc8#
      • 1...Qxe2!
    • 1.Bf5?
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qb5
        • 2.Qxb5#
      • 1...e3
        • 2.Bxd3#
        • 2.Qxd3#
      • 1...d5
        • 2.Bc8#
      • 1...d6
        • 2.Bc8#
      • 1...Qxe2!
    • 1.Bxd7?
      • threat
        • 2.Bc8#
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Sxd7!
    • 1.Rf1?
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qxe2
        • 2.Bxe2#
      • 1...e3
        • 2.Qxd3#
      • 1...d5
        • 2.Bc8#
      • 1...d6
        • 2.Bc8#
      • 1...Qb5!
    • 1.Rf2?
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qxe2
        • 2.Bxe2#
      • 1...e3
        • 2.Qxd3#
      • 1...d5
        • 2.Bc8#
      • 1...d6
        • 2.Bc8#
      • 1...Qb5!
    • 1.Rf4?
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qxe2
        • 2.Bxe2#
      • 1...e3
        • 2.Qxd3#
      • 1...d5
        • 2.Bc8#
      • 1...d6
        • 2.Bc8#
      • 1...Qb5!
    • 1.Rxc6+?
      • 1...dxc6
        • 2.Bc8#
      • 1...Sxc6!
    • 1.Rd6?
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qxe2
        • 2.Bxe2#
      • 1...Qb5
        • 2.Qxb5#
      • 1...e3
        • 2.Qxd3#
      • 1...cxd6!
    • 1.Rg6?
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qxe2
        • 2.Bxe2#
      • 1...Qb5
        • 2.Qxb5#
      • 1...e3
        • 2.Qxd3#
      • 1...d5
        • 2.Bc8#
      • 1...d6
        • 2.Bc8#
      • 1...hxg6!
    • 1.Rf7?
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qxe2
        • 2.Bxe2#
      • 1...e3
        • 2.Qxd3#
      • 1...d5
        • 2.Bc8#
      • 1...d6
        • 2.Bc8#
      • 1...Qb5!
    • 1.Rf8?
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qxe2
        • 2.Bxe2#
      • 1...e3
        • 2.Qxd3#
      • 1...d5
        • 2.Bc8#
      • 1...d6
        • 2.Bc8#
      • 1...Qb5!
    • 1.Qf1?
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qb5
        • 2.Qxb5#
      • 1...Qe2
        • 2.Bxe2#
        • 2.Qxe2#
      • 1...e3
        • 2.Qxd3#
      • 1...d5
        • 2.Bc8#
      • 1...d6
        • 2.Bc8#
      • 1...Qxf1+!
    • 1.b5+?
      • 1...Qxb5
        • 2.Qxb5#
      • 1...Ka5!
  • Keys
    • 1.Rf3!
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qxe2
        • 2.Rxa3#
      • 1...exf3
        • 2.Qxd3#
      • 1...Qb5
        • 2.Rxa3#
      • 1...e3
        • 2.Qxd3#
      • 1...d5
        • 2.Bc8#
      • 1...d6
        • 2.Bc8#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(b);N_SPINQ(b),OGATE,XQ(C)::B(F),XQ(b)
    • Q(b);CHECK,OGATE::QAB(C),XQ(b)
    • Q(b);OGATE::QAB1(C),XQ(b)
    • P(c);N_GUARD::QAB(C),XQ(b)
    • P(g);OGATE::B(F)
    • P(g);N_SPINP(e),OGATE::B(F)
  • Tries
    • Try
      • B(F);
      • Vars
        • Q(b);CHECK,OGATE::QAB(C),XQ(b)
        • Q(b);OGATE::QAB1(C),XQ(b)
        • P(c);N_GUARD::QAB(C),XQ(b)
        • P(g);OGATE::B(F)
        • P(g);N_SPINP(e),OGATE::B(F)
      • Refutation
        • Q(b);N_SPINQ(b),XQ(C)
    • Try
      • B(F);
      • Vars
        • Q(b);CHECK,OGATE::QAB(C),XQ(b)
        • Q(b);OGATE::QAB1(C),XQ(b)
        • P(g);OGATE::B(F)
        • P(g);N_SPINP(e),OGATE::B(F)
      • Refutation
        • Q(b);N_SPINQ(b),XQ(C)
    • Try
      • B(F);XP(g)
      • Threat
        • B(F)
      • Vars
        • Q(b);CHECK,OGATE::QAB(C),XQ(b)
      • Refutation
        • S(i);XB(F)
    • Try
      • R(H);N_PINP(e)
      • Vars
        • Q(b);CHECK,OGATE::QAB(C),XQ(b)
        • Q(b);N_SPINQ(b),OGATE,XQ(C)::B(F),XQ(b)
        • P(c);N_GUARD::QAB(C),XQ(b)
        • P(g);OGATE::B(F)
      • Refutation
        • Q(b);
    • Try
      • R(H);N_PINP(e)
      • Vars
        • Q(b);CHECK,OGATE::QAB(C),XQ(b)
        • Q(b);N_SPINQ(b),OGATE,XQ(C)::B(F),XQ(b)
        • P(c);N_GUARD::QAB(C),XQ(b)
        • P(g);OGATE::B(F)
      • Refutation
        • Q(b);
    • Try
      • R(H);N_PINP(e)
      • Vars
        • Q(b);CHECK,OGATE::QAB(C),XQ(b)
        • Q(b);N_SPINQ(b),OGATE,XQ(C)::B(F),XQ(b)
        • P(c);N_GUARD::QAB(C),XQ(b)
        • P(g);OGATE::B(F)
      • Refutation
        • Q(b);
    • Try
      • R(H);CHECK,XP(e)
      • Vars
        • P(g);OGATE,XR(H)::B(F)
      • Refutation
        • S(i);XR(H)
    • Try
      • R(H);
      • Vars
        • Q(b);CHECK,OGATE::QAB(C),XQ(b)
        • Q(b);N_SPINQ(b),OGATE,XQ(C)::B(F),XQ(b)
        • Q(b);OGATE::QAB1(C),XQ(b)
        • P(c);N_GUARD::QAB(C),XQ(b)
      • Refutation
        • P(f);N_SPINP(e),XR(H)
    • Try
      • R(H);
      • Vars
        • Q(b);CHECK,OGATE::QAB(C),XQ(b)
        • Q(b);N_SPINQ(b),OGATE,XQ(C)::B(F),XQ(b)
        • Q(b);OGATE::QAB1(C),XQ(b)
        • P(c);N_GUARD::QAB(C),XQ(b)
        • P(g);OGATE::B(F)
        • P(g);N_SPINP(e),OGATE::B(F)
      • Refutation
        • P(h);N_SPINP(e),XR(H)
    • Try
      • R(H);N_PINP(e)
      • Vars
        • Q(b);CHECK,OGATE::QAB(C),XQ(b)
        • Q(b);N_SPINQ(b),OGATE,XQ(C)::B(F),XQ(b)
        • P(c);N_GUARD::QAB(C),XQ(b)
        • P(g);OGATE::B(F)
      • Refutation
        • Q(b);
    • Try
      • R(H);N_PINP(e)
      • Vars
        • Q(b);CHECK,OGATE::QAB(C),XQ(b)
        • Q(b);N_SPINQ(b),OGATE,XQ(C)::B(F),XQ(b)
        • P(c);N_GUARD::QAB(C),XQ(b)
        • P(g);OGATE::B(F)
      • Refutation
        • Q(b);
    • Try
      • Q(C);
      • Vars
        • Q(b);CHECK,OGATE::QAB(C),XQ(b)
        • Q(b);OGATE::QAB1(C),XQ(b)
        • P(c);N_GUARD::QAB(C),XQ(b)
        • P(g);OGATE::B(F)
        • P(g);N_SPINP(e),OGATE::B(F)
      • Refutation
        • Q(b);CHECK,N_SPINQ(b),XQ(C)
    • Try
      • P(D);CHECK,N_PINQ(b)
      • Vars
        • Q(b);OGATE,P_SPINQ(b),XP(D)::QAB1(C),XQ(b)
      • Refutation
        • K(d);N_SPINP(e),P-FLIGHT
  • Actual
    • R(H);N_PINP(e)
    • Vars
      • Q(b);CHECK,OGATE::QAB(C),XQ(b)
      • Q(b);N_SPINQ(b),OGATE,XQ(C)::R(H),XP(a)
      • P(c);N_GUARD,XR(H)::QAB(C),XQ(b)
      • Q(b);OGATE::R(H),XP(a)
      • P(c);N_GUARD::QAB(C),XQ(b)
      • P(g);OGATE::B(F)
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