MESON Chess Problem Database

Problem Display
PID: 240315 (B7/3p4/3PpQ2/4N3/1P1kNb2/1K4p1/3P2P1/3R1R2 w - - 0 1)

Maleika, Gerhard

Problem-Forum, 2004

B7/3p4/3PpQ2/4N3/1P1kNb2/1K4p1/3P2P1/3R1R2

#2

11 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sf2?
      • threat
        • 2.Sf3#
        • 2.Qxf4#
      • 1...Bxd2
        • 2.Qf4#
      • 1...gxf2
        • 2.Qxf4#
      • 1...Be3
        • 2.Sf3#
      • 1...Bg5
        • 2.Sf3#
      • 1...Bh6
        • 2.Sf3#
      • 1...Bxe5!
    • 1.Sc3?
      • threat
        • 2.Se2#
        • 2.Sb5#
        • 2.Rxf4#
        • 2.Qxf4#
      • 1...Bxd2
        • 2.Qf4#
      • 1...Be3
        • 2.Se2#
        • 2.Sb5#
      • 1...Bg5
        • 2.Se2#
        • 2.Sb5#
      • 1...Bh6
        • 2.Se2#
        • 2.Sb5#
      • 1...Bxe5!
    • 1.Rf3?
      • threat
        • 2.Rd3#
      • 1...Be3
        • 2.dxe3#
      • 1...Bxe5!
    • 1.Qg5?
      • 1...Bxd2
        • 2.Rxd2#
      • 1...Bxe5
        • 2.Qe3#
      • 1...Be3
        • 2.dxe3#
      • 1...Bxg5!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sf3#
        • 2.Rxf4#
        • 2.Qxf4#
      • 1...Bxd2
        • 2.Qf4#
      • 1...Bxe5
        • 2.Rf4#
      • 1...Be3
        • 2.Sf3#
      • 1...Bg5
        • 2.Sf3#
      • 1...Bh6
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);P_SPINB(c),XP(C)::QAR2(J)
        • P(a);XS(G)::QAR2(J),XB(c)
        • B(c);::QAB(J)+S(H),DCHECK
      • Refutation
        • B(c);P_SPINB(c),XS(H)
    • Try
      • S(G);
      • Threat
        • DUALS(4)
      • Vars
        • B(c);P_SPINB(c),XP(C)::QAR2(J)
      • Refutation
        • B(c);P_SPINB(c),XS(H)
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • B(c);OGATE::R(A)+P(C)DCHECK,XB(c)
      • Refutation
        • B(c);P_SPINB(c),XS(H)
    • Try
      • Q(J);
      • Vars
        • B(c);OGATE,P_SPINB(c),XP(C)::R(A),XB(c)
        • B(c);OGATE,SBLOCK,XS(H)::QAB1(J)
        • B(c);OGATE::R(A)+P(C)DCHECK,XB(c)
      • Refutation
        • B(c);XQ(J)
  • Actual
    • S(G);
    • Threat
      • DUALS(3)
    • Vars
      • B(c);P_SPINB(c),XP(C)::QAR2(J)
      • B(c);P_SPINB(c),XS(H)::R(B)
      • B(c);::QAB(J)+S(H),DCHECK
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