MESON Chess Problem Database

Problem Display
PID: 241358 (2k3qR/1p2P3/1RN2P1n/4N2B/2Q3pr/7b/K6B/8 w - - 0 1)

Gavrilov, Constantin Grigorievich

Revista Romana de Sah, 1938

2k3qR/1p2P3/1RN2P1n/4N2B/2Q3pr/7b/K6B/8

#2

10 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qd8
      • 2.exd8Q#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sb8#
        • 2.Qe6#
      • 1...Kd7
        • 2.Sce5#
      • 1...Rxh5
        • 2.Qe6#
      • 1...bxc6
        • 2.Qe6#
      • 1...Bg2
        • 2.Qe6#
      • 1...g3!
    • 1.Qxg8+?
      • 1...Kc7
        • 2.Qd8#
      • 1...Sxg8!
  • Keys
    • 1.Sxg4!
      • threat
        • 2.Sb8#
        • 2.Qe6#
      • 1...Kd7
        • 2.Sce5#
      • 1...Rxg4
        • 2.Qe6#
      • 1...Rxh5
        • 2.Qe6#
      • 1...Bxg4
        • 2.Sb8#
      • 1...bxc6
        • 2.Qe6#
      • 1...Bf1
        • 2.Qe6#
      • 1...Bg2
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • Q(g);N_PINQ(C),OGATE::PXQ(g)=Q
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(f);N_SPINQ(g),S_FLIGHT::S(G)
        • R(c);XB(E)::QAB(C)
        • P(e);P_SPINP(e),XS(G)::QAB(C)
        • B(a);::QAB(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);CHECK,N_SPINQ(C),XQ(g)
      • Vars
        • K(f);P-FLIGHT::QAB1(C)
      • Refutation
        • S(d);P_SPINS(d),XQ(C)
  • Actual
    • S(D);XP(b)
    • Threat
      • DUALS(2)
    • Vars
      • K(f);N_SPINQ(g),S_FLIGHT::S(G)
      • R(c);XS(D)::QAB(C)
      • R(c);XB(E)::QAB(C)
      • B(a);XS(D)::QAR(C)+S(G)
      • P(e);P_SPINP(e),XS(G)::QAB(C)
      • B(a);::QAB(C)
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