MESON Chess Problem Database

Problem Display
PID: 66815 (8/1Qr5/n3p1RN/2BNk1n1/4rp1b/2P3P1/3Rb3/2K5 w - - 0 1)

Georgopoulos, Georgios

Zappas, Byron

The Problemist, 1992

8/1Qr5/n3p1RN/2BNk1n1/4rp1b/2P3P1/3Rb3/2K5

#2

9 + 9

5416 FIDE Album (1992-1994) (Annexe) 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Qg7#
    • 1...Rg7
      • 2.Qxg7#
    • 1...Rc8
      • 2.Qg7#
    • 1...Bxg3
      • 2.Rxg5#
    • 1...Sb4
      • 2.Qxc7#
    • 1...Sxc5
      • 2.Qxc7#
    • 1...Sb8
      • 2.Qxc7#
    • 1...exd5
      • 2.Bd6#
      • 2.Rxd5#
      • 2.Qxd5#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Bd6#
      • 1...Rxc5
        • 2.Qg7#
      • 1...Sxc5
        • 2.Qxc7#
      • 1...Rd4
        • 2.cxd4#
      • 1...Rc6
        • 2.Sxc6#
        • 2.Qg7#
      • 1...Rd7
        • 2.Sc6#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Sf7!
    • 1.Sxf4?
      • threat
        • 2.Bd6#
      • 1...Rxc5
        • 2.Qg7#
      • 1...Sxc5
        • 2.Qxc7#
      • 1...Sf7
        • 2.Rxe6#
      • 1...Rd4
        • 2.cxd4#
      • 1...Rc6
        • 2.Qg7#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Rd7!
    • 1.Se7?
      • threat
        • 2.Bd6#
      • 1...Sxc5
        • 2.Qxc7#
      • 1...Sf7
        • 2.Sxf7#
      • 1...Rd4
        • 2.cxd4#
      • 1...Rc6
        • 2.Sxc6#
      • 1...Rd7
        • 2.Sc6#
      • 1...Bd3
        • 2.Sg4#
      • 1...Rxc5!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Bd6#
      • 1...Rxc5
        • 2.Sd7#
      • 1...Sxc5
        • 2.Qxc7#
      • 1...Sf7
        • 2.Qxe4#
      • 1...Rd4
        • 2.cxd4#
      • 1...Rc6
        • 2.Sd7#
      • 1...Rd7
        • 2.Sxd7#
      • 1...Bd3
        • 2.Sfg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • R(i);OGATE::QAB(I)
    • R(i);OGATE::QAB(I),XR(i)
    • B(d);N_GUARD,XP(D)::R(G),XS(f)
    • S(g);N_GUARD::QAB(I),XR(i)
    • S(g);N_GUARD,XB(E)::QAB(I),XR(i)
  • Tries
    • Try
      • S(F);
      • Threat
        • B(E)
      • Vars
        • R(i);OGATE,P_PINP(C),XB(E)::QAB(I)
        • S(g);N_GUARD,XB(E)::QAB(I),XR(i)
        • R(b);OGATE::P(C),XR(b)
        • R(i);N_GUARD::S(F)
        • B(a);N_GUARD::S(F),XB(a)
      • Refutation
        • S(f);
    • Try
      • S(F);XP(c)
      • Threat
        • B(E)
      • Vars
        • R(i);OGATE,P_PINP(C),XB(E)::QAB(I)
        • S(g);N_GUARD,XB(E)::QAB(I),XR(i)
        • S(f);N_GUARD::R1(G),XP(h)
        • R(b);OGATE::P(C),XR(b)
        • R(i);OGATE::QAB(I)
        • B(a);N_GUARD::S(F),XB(a)
      • Refutation
        • R(i);
    • Try
      • S(F);
      • Threat
        • B(E)
      • Vars
        • S(g);N_GUARD,XB(E)::QAB(I),XR(i)
        • S(f);N_GUARD::S(H),XS(f)
        • R(b);OGATE::P(C),XR(b)
        • R(i);N_GUARD::S(F),XR(i)
        • R(i);N_GUARD::S(F)
        • B(a);N_GUARD::S(H)
      • Refutation
        • R(i);P_PINP(C),XB(E)
  • Actual
    • S(F);
    • Threat
      • B(E)
    • Vars
      • R(i);N_GUARD,P_PINP(C),XB(E)::S(F)
      • S(g);N_GUARD,XB(E)::QAB(I),XR(i)
      • S(f);N_GUARD::QAR1(I),XR(b)
      • R(b);OGATE::P(C),XR(b)
      • R(i);N_GUARD::S(F)
      • R(i);N_GUARD::S(F),XR(i)
      • B(a);N_GUARD::S(F)
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