MESON Chess Problem Database

Problem Display
PID: 61920 (n7/6p1/BBPp2Q1/Pn1kP1p1/2Rp2P1/1K1N4/3b4/8 w - - 0 1)

Markovsky, Grigory F

2nd Prize, Leninski Put., 1981

n7/6p1/BBPp2Q1/Pn1kP1p1/2Rp2P1/1K1N4/3b4/8

#2

10 + 8

3752 FIDE Album (1980-1982) 1988

SOLUTION

  • SOUND
  • Sets
    • 1...dxe5
      • 2.Rc5#
  • Tries
    • 1.Sb4+?
      • 1...Kxe5
        • 2.Qf5#
      • 1...Bxb4!
    • 1.Bb7?
      • threat
        • 2.c7#
      • 1...Sa7
        • 2.Rxd4#
      • 1...Sbc7
        • 2.Rxd4#
      • 1...Sac7!
    • 1.Rxd4+?
      • 1...Kxc6
        • 2.Qe8#
      • 1...Sxd4+!
    • 1.Qf5?
      • threat
        • 2.e6#
      • 1...dxe5
        • 2.Qxe5#
      • 1...Bf4
        • 2.Sb4#
      • 1...g6!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qe4#
      • 1...Kxe5
        • 2.Qf5#
      • 1...Kxc6
        • 2.Bb7#
      • 1...dxc5
        • 2.Rxc5#
      • 1...dxe5
        • 2.Qe6#
      • 1...Sc3
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(f);N_GUARD,XP(F)::R1(C)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(d);P-FLIGHT,XP(F)::QAR1(J)
      • Refutation
        • B(a);XS(B)
    • Try
      • B(G);
      • Threat
        • B(G)+P(I)
      • Vars
        • S(c);N_GUARD::R1(C),XP(b)
      • Refutation
        • S(h);
    • Try
      • R(C);CHECK,XP(b)
      • Vars
        • K(d);P_SPINP(f),S_FLIGHT,XP(I)::QAB(J)
      • Refutation
        • S(c);CHECK,XR(C)
    • Try
      • Q(J);
      • Threat
        • QAR(J)+P(F)
      • Vars
        • P(f);OGATE,P_SPINP(f),XP(F)::QAR1(J),XP(f)
        • B(a);N_GUARD::S(B)
      • Refutation
        • P(g);
  • Actual
    • S(B);
    • Threat
      • QAB1(J)
    • Vars
      • K(d);OGATEB,P-FLIGHT,XP(F)::QAR1(J)
      • K(d);OGATEB,P_SPINP(f),S_FLIGHT,XP(I)::B(G)
      • P(f);OGATE,XS(B)::R1(C),XP(f)
      • P(f);XP(F)::QAB1(J)
      • S(c);N_GUARD::QAR1(J),XP(f)
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