MESON Chess Problem Database

Problem Display
PID: 71378 (8/8/2PK2p1/p1B2p2/2PR1RP1/r3kB2/4p1P1/2b1Qbnn w - - 0 1)

Kopyl, Valery Volodimirovich

Melnichenko, Viktor Oleksandrovich

4th Comm., Probleemblad, 2006

8/8/2PK2p1/p1B2p2/2PR1RP1/r3kB2/4p1P1/2b1Qbnn

#2

10 + 10

102 Probleemblad 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf3
      • 2.Rxf3#
    • 1...Sf2
      • 2.Qxc1#
    • 1...fxg4
      • 2.Rfe4#
  • Tries
    • 1.Ke5?
      • threat
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rd5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Sxf3+
        • 2.Rxf3#
      • 1...Rd3
        • 2.Rde4#
      • 1...Bd2
        • 2.Rxd2#
        • 2.Rd5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Bb2!
    • 1.Bxe2?
      • threat
        • 2.Rde4#
      • 1...Bxe2
        • 2.Qxc1#
      • 1...Sxe2
        • 2.Rf3#
      • 1...Rd3!
    • 1.Rxf5?
      • threat
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rdd5#
        • 2.Re5#
      • 1...Bxg2
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rdd5#
      • 1...Sxf3
        • 2.Rxf3#
      • 1...Rd3
        • 2.Re5#
      • 1...Bb2
        • 2.Re5#
      • 1...Bd2
        • 2.Rxd2#
        • 2.Rdd5#
        • 2.Re5#
      • 1...Sf2
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rdd5#
        • 2.Qxc1#
      • 1...Sg3
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rdd5#
      • 1...gxf5!
  • Keys
    • 1.Bd5!
      • threat
        • 2.Qxc1#
      • 1...Ra1
        • 2.Qc3#
      • 1...Ra2
        • 2.Qc3#
      • 1...Rc3
        • 2.Qxc3#
      • 1...Rd3
        • 2.Rde4#
      • 1...Bb2
        • 2.Qd2#
      • 1...Bd2
        • 2.Qxd2#
      • 1...Sf3
        • 2.Rxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • S(c);OGATE,XB(C)::R1(F),XS(c)
    • S(d);SBLOCK::QAB(A),XB(a)
    • P(i);N_GUARD,XP(G)::R1(F)
  • Tries
    • Try
      • K(J);S_FLIGHT
      • Threat
        • DUALS(6)
      • Vars
        • S(c);CHECK,OGATE,XB(C)::R1(F),XS(c)
        • R(f);SBLOCK::B(H)+R(E),DCHECK
      • Refutation
        • B(a);P_PINR(E)
    • Try
      • B(C);XP(e)
      • Threat
        • B(H)+R(E),DCHECK
      • Vars
        • B(b);P_SPINB(b),SBLOCK,XB(C)::QAB(A),XB(a)
        • S(c);N_GUARD,P_SPINS(c),XB(C)::R1(F)
      • Refutation
        • R(f);P_PINR(E)
    • Try
      • R(F);XP(i)
      • Threat
        • DUALS(4)
      • Vars
        • S(c);OGATE,XB(C)::R1(F),XS(c)
        • R(f);P_PINR(E)::R(F)
        • B(a);::R(F)
      • Refutation
        • P(j);XR(F)
  • Actual
    • B(C);
    • Threat
      • QAB(A),XB(a)
    • Vars
      • R(f);N_GUARD::QAR2(A)
      • R(f);N_GUARD::QAR2(A),XR(f)
      • R(f);SBLOCK::B(H)+R(E),DCHECK
      • B(a);N_GUARD::QAB1(A)
      • B(a);N_GUARD::QAB1(A),XB(a)
      • S(c);N_GUARD::R1(F),XS(c)
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