MESON Chess Problem Database

Problem Display
PID: 109832 (2bR3q/b1Qppp2/1N6/4N3/2pkp1Bp/1P6/1K1P4/8 w - - 0 1)

Bakcsi, Gyorgy

Tipografia TE, 1966

2bR3q/b1Qppp2/1N6/4N3/2pkp1Bp/1P6/1K1P4/8

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5
      • 2.Qxc4#
    • 1...Ba6
      • 2.Rxd7#
    • 1...cxb3
      • 2.Qc3#
    • 1...c3+
      • 2.Qxc3#
    • 1...d5
      • 2.Rxd5#
    • 1...e6
      • 2.Qd6#
  • Tries
    • 1.Sxf7?
      • threat
        • 2.Qxc4#
      • 1...c3+
        • 2.Qxc3#
      • 1...cxb3
        • 2.Qc3#
        • 2.Qc4#
      • 1...Ba6
        • 2.Rxd7#
      • 1...Kd3+!
    • 1.Sbxd7?
      • threat
        • 2.Qxc4#
      • 1...Kd5
        • 2.Sb6#
        • 2.Sf6#
      • 1...Bxd7
        • 2.Rxd7#
      • 1...cxb3
        • 2.Qc4#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Ba6
        • 2.Sf8#
      • 1...c3+!
  • Keys
    • 1.Sexd7!
      • threat
        • 2.Qxc4#
      • 1...Kd3+
        • 2.Se5#
      • 1...c3+
        • 2.Qxc3#
      • 1...Bxd7
        • 2.Rxd7#
      • 1...cxb3
        • 2.Qc3#
        • 2.Qc4#
      • 1...Ba6
        • 2.Sf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(j);SBLOCK,XS(E)::QAR1(G),XP(a)
    • B(i);N_GUARD::R(H),XP(f)
    • P(a);OGATE,XP(C)::QAB1(G)
    • P(a);CHECK,OGATE::QAB1(G),XP(a)
    • P(f);OGATE::R1(H),XP(f)
    • P(g);N_GUARD::QAR2(G)
  • Tries
    • Try
      • S(E);XP(h)
      • Threat
        • QAR1(G),XP(a)
      • Vars
        • P(a);CHECK,OGATE::QAB1(G),XP(a)
        • B(i);N_GUARD::R(H),XP(f)
      • Refutation
        • K(b);CHECK,P-FLIGHT
    • Try
      • S(F);XP(f)
      • Threat
        • QAR1(G),XP(a)
      • Vars
        • B(i);OGATE,P_SPINB(i),XS(F)::R(H),XB(i)
        • P(a);XP(C)::QAR1(G)
        • B(e);N_GUARD::QAB1(G),XB(e)
        • B(i);N_GUARD::R(H)+S(F)
      • Refutation
        • P(a);CHECK
  • Actual
    • S(E);XP(f)
    • Threat
      • QAR1(G),XP(a)
    • Vars
      • K(b);CHECK,P-FLIGHT::R(H)+S(E),DCHECK
      • P(a);CHECK,OGATE::QAB1(G),XP(a)
      • B(i);OGATE,P_SPINB(i),XS(E)::R(H),XB(i)
      • B(i);N_GUARD::R(H)+S(E)
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