MESON Chess Problem Database

Problem Display
PID: 71704 (2K3B1/2B5/k6r/3p4/7r/1R3n1R/4nQ2/b7 w - - 0 1)

Gavrilov, Constantin Grigorievich

Dzien Polski, 1932

2K3B1/2B5/k6r/3p4/7r/1R3n1R/4nQ2/b7

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rh5
      • 2.Qb6#
    • 1...Rb6
      • 2.Qxb6#
    • 1...Rh7
      • 2.Qb6#
    • 1...Rh8
      • 2.Qb6#
    • 1...Bf6
      • 2.Qb6#
    • 1...Sed4
      • 2.Qa2#
    • 1...Sf4
      • 2.Qa2#
  • Keys
    • 1.Rb7!
      • threat
        • 2.Qa7#
      • 1...Rb6
        • 2.Qxb6#
      • 1...Rd4
        • 2.Rxh6#
      • 1...Bd4
        • 2.Qxe2#
      • 1...Sed4
        • 2.Qa2#
      • 1...Sfd4
        • 2.Ra3#
      • 1...d4
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • R(g);N_GUARD,SBLOCK::QAR1(A)
    • R(g);N_GUARD::QAR1(A),XR(g)
    • R(g);N_GUARD::QAR1(A)
    • R(g);N_GUARD,P_PINB(F)::QAR1(A)
    • B(a);S_CUTR(g)::QAR1(A)
    • S(b);OGATE::QAR(A)
  • Actual
    • R(B);
    • Threat
      • QAR1(A)
    • Vars
      • R(g);N_GUARD::QAR1(A),XR(g)
      • R(d);OGATE::R(C),XR(g)
      • B(a);S_CUTR(d)::QAB(A),XS(b)
      • S(b);OGATE::QAR(A)
      • S(c);OGATE::R(C)
      • P(e);OGATE::B(F)
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