MESON Chess Problem Database

Problem Display
PID: 110341 (8/8/8/8/8/6P1/p1K3r1/k3BNQ1 w - - 0 1)

Mlynka, Karol

Pat a Mat, 1986

8/8/8/8/8/6P1/p1K3r1/k3BNQ1

#2

5 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bd2?
      • threat
        • 2.Qd4#
      • 1...Rxd2+
        • 2.Sxd2#
      • 1...Rxg1
        • 2.Bc3#
      • 1...Rxg3
        • 2.Sxg3#
      • 1...Rf2!
    • 1.Bf2?
      • 1...Rxg1
        • 2.Bd4#
      • 1...Rxg3
        • 2.Sxg3#
      • 1...Rh2
        • 2.Sd2#
        • 2.Sxh2#
        • 2.Se3#
      • 1...Rxf2+!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Qd4#
      • 1...Rxd2+
        • 2.Bxd2#
      • 1...Rxg1
        • 2.Sb3#
      • 1...Rxg3
        • 2.Bxg3#
      • 1...Rf2
        • 2.Bxf2#

FEATURES

  • Static
    • TYPE = WHITE_IN_CHECK
  • Tries
    • Try
      • B(A);P_SPINB(A)
      • Threat
        • QAB(C)
      • Vars
        • R(c);CHECK,XB(A)::QAR(C)+S(B),XR(c)
        • R(c);N_PINB(A),XQ(C)::B(A)
        • R(c);N_PINB(A),XP(E)::QAR(C)+S(B),XR(c)
      • Refutation
        • R(c);
    • Try
      • B(A);P_SPINB(A)
      • Vars
        • R(c);N_PINB(A),XQ(C)::B(A)
        • R(c);N_PINB(A),XP(E)::QAR(C)+S(B),XR(c)
      • Refutation
        • R(c);CHECK,XB(A)
  • Actual
    • S(B);P_SPINS(B)
    • Threat
      • QAB(C)
    • Vars
      • R(c);CHECK,OGATE,XS(B)::QAR(C)+B(A),XR(c)
      • R(c);N_PINS(B),XQ(C)::S(B)
      • R(c);N_PINS(B),OGATE,XP(E)::QAR(C)+B(A),XR(c)
      • R(c);N_GUARD::QAR(C)+B(A),XR(c)
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