MESON Chess Problem Database

Problem Display
PID: 75122 (2R3B1/1n1p4/p1b1rp2/8/1B1k1PQ1/2N2R2/2P2PKN/8 w - - 0 1)

Maleika, Gerhard

Die Schwalbe, 2007

2R3B1/1n1p4/p1b1rp2/8/1B1k1PQ1/2N2R2/2P2PKN/8

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.f5#
    • 1...Re3
      • 2.fxe3#
    • 1...Re4
      • 2.Rd3#
    • 1...Bxf3+
      • 2.Sxf3#
    • 1...Ba4
      • 2.Rd3#
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qd3#
      • 1...Bxf3+
        • 2.Sxf3#
      • 1...Kc4
        • 2.Qe4#
      • 1...Be4
        • 2.Se2#
      • 1...Re3
        • 2.fxe3#
      • 1...Re4
        • 2.Rd3#
      • 1...Bb5
        • 2.Qd5#
      • 1...Sc5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT,P_SPINB(c),P_SPINR(d)::QAR(I)+P(H)
    • R(d);OGATE::P(B),XR(d)
    • R(d);N_PINR(F)::R1(F)
    • B(c);CHECK,XR(F)::S(D),XB(c)
    • B(c);N_PINR(F)::R1(F)
  • Actual
    • Q(I);
    • Threat
      • QAR1(I)
    • Vars
      • B(c);CHECK,XR(F)::S(D),XB(c)
      • K(a);P-FLIGHT,P_SPINB(c),P_SPINR(d)::QAR2(I)
      • B(c);S_CUTR(d)::S(E)
      • R(d);OGATE::P(B),XR(d)
      • R(d);N_PINR(F)::R1(F)
      • B(c);N_GUARD,N_PINR(F)::QAR1(I)
      • S(f);N_GUARD::QAB1(I),XS(f)
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