MESON Chess Problem Database

Problem Display
PID: 98888 (1B1R4/4Q2b/2P1P3/r2PN3/2Bk2p1/PpRPn1N1/3PP3/1K6 w - - 0 1)

Szoghy, Jozsef

Problemas, 1975

1B1R4/4Q2b/2P1P3/r2PN3/2Bk2p1/PpRPn1N1/3PP3/1K6

#2

15 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd5
      • 2.Qa7#
    • 1...Ra7
      • 2.Qxa7#
    • 1...Bxd3+
      • 2.Rxd3#
    • 1...Sxc4
      • 2.Rxc4#
    • 1...Sxd5
      • 2.e3#
  • Tries
    • 1.Sg6?
      • threat
        • 2.Be5#
      • 1...Sxc4
        • 2.Sf5#
        • 2.Rxc4#
      • 1...Bxg6!
    • 1.Sf7?
      • threat
        • 2.Be5#
      • 1...Sxc4
        • 2.Rxc4#
      • 1...Bxd3+!
    • 1.Bb5?
      • threat
        • 2.Qc5#
      • 1...Bxd3+
        • 2.Rxd3#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Rxb5!
    • 1.dxe3+?
      • 1...Kxc3
        • 2.Qb4#
      • 1...Kxe3!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Sd7#
      • 1...Bxd3+
        • 2.Sxd3#
      • 1...Kc5
        • 2.Sd7#
      • 1...Rxd5
        • 2.Ba7#
      • 1...Sxc4
        • 2.Rxc4#
      • 1...Sxd5
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(e);N_GUARD,P_SPINR(e),XP(I)::QAB(M)
    • R(e);N_GUARD::QAB(M),XR(e)
    • B(f);CHECK,OGATE,XP(F)::R1(E),XB(f)
    • S(b);OGATE,XB(H)::R1(E),XS(b)
    • S(b);OGATE,P_SPINS(b),XP(I)::P(C)
  • Tries
    • Try
      • S(J);N_SPINP(F)
      • Threat
        • B(N)
      • Refutation
        • B(f);P_PINP(F),XS(J)
    • Try
      • S(J);
      • Threat
        • B(N)
      • Vars
        • S(b);OGATE,XB(H)::R1(E),XS(b)
      • Refutation
        • B(f);CHECK,XP(F)
    • Try
      • B(H);
      • Threat
        • QAB1(M)
      • Vars
        • B(f);CHECK,OGATE,XP(F)::R1(E),XB(f)
        • S(b);N_GUARD::R1(E),XS(b)
      • Refutation
        • R(e);XB(H)
    • Try
      • P(B);CHECK,XS(b)
      • Vars
        • K(c);S_FLIGHT,XR(E)::QAB1(M)
      • Refutation
        • K(c);S_FLIGHT,XP(B)
  • Actual
    • Q(M);
    • Threat
      • QAB(M)+S(J)
    • Vars
      • B(f);CHECK,XP(F)::QAB(M)+S(J),XB(f)
      • K(c);S_FLIGHT::S(J)
      • R(e);N_GUARD,P_SPINR(e),XP(I)::B(N)
      • S(b);OGATE,XB(H)::R1(E),XS(b)
      • S(b);OGATEB,P_SPINS(b),XP(I)::QAB(M)
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