MESON Chess Problem Database

Problem Display
PID: 110334 (B2nR3/1P1R4/b2b1p2/Pnpk1N2/4pP2/rP1p2K1/5B2/3Q4 w - - 0 1)

Mlynka, Karol

2nd Comm., Podtatranske noviny, 1981

B2nR3/1P1R4/b2b1p2/Pnpk1N2/4pP2/rP1p2K1/5B2/3Q4

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.b8S#
    • 1...Sc3
      • 2.Rxd6#
    • 1...Sd4
      • 2.Rxd6#
    • 1...Sa7
      • 2.Rxd6#
    • 1...Sc7
      • 2.Rxd6#
    • 1...Se6
      • 2.Se7#
    • 1...e3
      • 2.Qf3#
      • 2.Qh1#
  • Tries
    • 1.Se3+?
      • 1...Kc6
        • 2.b8S#
      • 1...Kd4!
    • 1.Re5+?
      • 1...Kc6
        • 2.b8S#
      • 1...fxe5!
    • 1.Qg4?
      • threat
        • 2.Se7#
      • 1...Kc6
        • 2.b8S#
      • 1...Sc6
        • 2.Qg8#
      • 1...e3
        • 2.Qf3#
      • 1...Rxb3!
    • 1.Qe1?
      • threat
        • 2.Qxe4#
      • 1...Kc6
        • 2.b8S#
      • 1...Sc3
        • 2.Rxd6#
      • 1...Se6
        • 2.Se7#
      • 1...e3
        • 2.Qh1#
      • 1...Ra4!
    • 1.Qh1?
      • threat
        • 2.Qxe4#
      • 1...Kc6
        • 2.b8S#
      • 1...Sc3
        • 2.Rxd6#
      • 1...Se6
        • 2.Se7#
      • 1...Ra4!
    • 1.Qxd3+?
      • 1...Kc6
        • 2.b8S#
      • 1...Sd4
        • 2.Rxd6#
        • 2.Qxe4#
      • 1...exd3!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Qxc5#
      • 1...Kc6
        • 2.b8S#
      • 1...Sc3
        • 2.Rxd6#
      • 1...Sd4
        • 2.Rxd6#
      • 1...Se6
        • 2.Se7#
      • 1...e3
        • 2.Qh1#
      • 1...c4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(f);N_SPINB(h),N_SPINP(b),S_FLIGHT::P=S
    • S(d);N_GUARD::R1(I),XB(h)
    • S(d);N_GUARD,N_SPINP(b)::R1(I),XB(h)
    • S(j);SBLOCK::S(G)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(f);N_SPINB(h),N_SPINP(b),S_FLIGHT::P=S
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • R(K);CHECK,N_SPINP(E)
      • Vars
        • K(f);N_SPINB(h),N_SPINP(b),S_FLIGHT::P=S
      • Refutation
        • P(i);XR(K)
    • Try
      • Q(A);N_PINP(b)
      • Threat
        • S(G)
      • Vars
        • K(f);N_SPINB(h),S_FLIGHT::P=S
        • S(j);N_GUARD,SBLOCK::QAB(A)
        • P(c);OGATEB::QAB(A)
      • Refutation
        • R(a);XP(C)
    • Try
      • Q(A);N_PINP(b)
      • Threat
        • QAB1(A),XP(c)
      • Vars
        • K(f);N_SPINB(h),S_FLIGHT::P=S
        • S(d);N_GUARD::R1(I),XB(h)
        • S(j);SBLOCK::S(G)
        • P(c);OGATEB::QAB(A)
      • Refutation
        • R(a);
    • Try
      • Q(A);N_PINP(b),P_PINP(c)
      • Threat
        • QAB1(A),XP(c)
      • Vars
        • K(f);N_SPINB(h),S_FLIGHT::P=S
        • S(d);N_GUARD::R1(I),XB(h)
        • S(j);SBLOCK::S(G)
      • Refutation
        • R(a);
    • Try
      • Q(A);CHECK,XP(b)
      • Vars
        • K(f);N_SPINB(h),S_FLIGHT::P=S
      • Refutation
        • P(c);XQ(A)
  • Actual
    • Q(A);N_PINP(b)
    • Threat
      • QAR1(A),XP(e)
    • Vars
      • K(f);N_SPINB(h),P_SPINP(e),S_FLIGHT::P=S
      • S(d);N_GUARD::R1(I),XB(h)
      • S(j);SBLOCK::S(G)
      • P(c);OGATEB::QAB(A)
      • P(e);::QAB1(A),XP(e)
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