MESON Chess Problem Database

Problem Display
PID: 157391 (6K1/2p2Rp1/1Nr3r1/2pQ2nb/4p3/p3k2N/q1pRp1B1/2b1B2n w - - 0 1)

Willmott, Arthur

The Problemist, 1989

6K1/2p2Rp1/1Nr3r1/2pQ2nb/4p3/p3k2N/q1pRp1B1/2b1B2n

#2

8 + 15

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Sc4#
    • 1...Qb3
      • 2.Qxb3#
    • 1...Qc4
      • 2.Sxc4#
    • 1...Qxd5
      • 2.Sxd5#
    • 1...Qa1
      • 2.Sc4#
    • 1...Qb2
      • 2.Sc4#
    • 1...Rxb6
      • 2.Qxc5#
    • 1...Rce6
      • 2.Qxc5#
    • 1...Rcf6
      • 2.Qxc5#
    • 1...Rd6
      • 2.Qxg5#
    • 1...Rge6
      • 2.Qxg5#
    • 1...Rh6
      • 2.Qxg5#
    • 1...Bxd2
      • 2.Bxd2#
      • 2.Qxd2#
    • 1...Sf2
      • 2.Bxf2#
    • 1...Sg3
      • 2.Bf2#
    • 1...Sxh3
      • 2.Qxe4#
    • 1...Se6
      • 2.Qxe4#
    • 1...Sxf7
      • 2.Qxe4#
    • 1...Sh7
      • 2.Qxe4#
    • 1...c4
      • 2.Qd4#
  • Tries
    • 1.Bxh1?
      • threat
        • 2.Bf2#
      • 1...Qxd5
        • 2.Sxd5#
      • 1...Sxh3
        • 2.Qxe4#
      • 1...Rcf6
        • 2.Qxc5#
      • 1...Rgf6!
  • Keys
    • 1.Re7!
      • threat
        • 2.Rd3#
      • 1...Qxd5+
        • 2.Sxd5#
      • 1...Bxd2
        • 2.Bxd2#
      • 1...Sxh3
        • 2.Rxe4#
      • 1...Qb3
        • 2.Qxb3#
      • 1...Qc4
        • 2.Sxc4#
      • 1...Rce6
        • 2.Qxc5#
      • 1...Rge6
        • 2.Qxg5#
      • 1...Sf2
        • 2.Bxf2#
      • 1...Se6
        • 2.Qxe4#
      • 1...c4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • Q(c);N_GUARD::S(F)
    • Q(c);N_GUARD::QAR(E),XQ(c)
    • Q(c);N_GUARD::S(F),XQ(c)
    • Q(c);P_PINR(G),XQ(E)::S(F),XQ(c)
    • R(l);N_GUARD,XS(F)::QAB(E),XP(i)
    • R(l);N_GUARD::QAB(E),XP(i)
    • R(m);N_GUARD::QAB(E),XS(j)
    • S(b);N_GUARD::B(A),XS(b)
    • S(b);N_GUARD::B(A)
    • S(j);N_GUARD,XS(D)::QAR1(E),XP(h)
    • S(j);N_GUARD::QAR1(E),XP(h)
    • S(j);N_GUARD,XR(G)::QAR1(E),XP(h)
    • P(i);N_GUARD::QAB1(E)
  • Tries
    • Try
      • B(C);XS(b)
      • Threat
        • B(A)
      • Vars
        • Q(c);P_PINR(G),XQ(E)::S(F),XQ(c)
        • S(j);N_GUARD,XS(D)::QAR1(E),XP(h)
        • R(l);N_GUARD::QAB(E),XP(i)
      • Refutation
        • R(m);
  • Actual
    • R(G);P_PINP(h),P_SPINQ(E)
    • Threat
      • R1(B)
    • Vars
      • Q(c);CHECK,XQ(E)::S(F),XQ(c)
      • B(a);OGATE,XR(B)::B(A),XB(a)
      • S(j);N_GUARD,XS(D)::R1(G),XP(h)
      • Q(c);N_GUARD::QAR(E),XQ(c)
      • Q(c);N_GUARD::S(F),XQ(c)
      • R(l);N_PINQ(E),N_SPINP(h)::QAB(E),XP(i)
      • R(m);N_PINQ(E),N_SPINP(h)::QAB(E),XS(j)
      • S(b);N_GUARD::B(A),XS(b)
      • S(j);N_PINQ(E),N_SPINP(h)::QAR1(E),XP(h)
      • P(i);N_PINQ(E)::QAB1(E)
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