MESON Chess Problem Database

Problem Display
PID: 95014 (3R4/8/1p1ppr1B/1B1pR3/Q1nk2P1/2N2pK1/1P3P2/6N1 w - - 0 1)

Lozek, Jozef

Pravda, 1999

3R4/8/1p1ppr1B/1B1pR3/Q1nk2P1/2N2pK1/1P3P2/6N1

#2

11 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qd1#
    • 1...Kc5
      • 2.Qxc4#
    • 1...dxe5
      • 2.Qxc4#
  • Tries
    • 1.Sxf3+?
      • 1...Kd3
        • 2.Re3#
        • 2.Qd1#
      • 1...Kc5
        • 2.Se4#
        • 2.Rc8#
        • 2.Qxc4#
        • 2.b4#
      • 1...Rxf3+!
    • 1.Be3+?
      • 1...Kd3
        • 2.Qd1#
      • 1...Kxe5!
    • 1.Re4+?
      • 1...Kd3
        • 2.Qd1#
      • 1...Kc5
        • 2.Rc8#
        • 2.b4#
      • 1...dxe4!
  • Keys
    • 1.Bg7!
      • 1...Kd3
        • 2.Qd1#
      • 1...Kc5
        • 2.Qxc4#
      • 1...Kxe5
        • 2.Sxf3#
      • 1...dxe5
        • 2.Qxc4#
      • 1...Rf4
        • 2.Rxd5#
      • 1...Rf5
        • 2.Rxd5#
      • 1...Rg6
        • 2.Rxd5#
      • 1...Rh6
        • 2.Rxd5#
      • 1...Rf7
        • 2.Rxd5#
      • 1...Rf8
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT::QAR2(F)
    • K(c);N_SPINS(b),P_SPINP(d),S_FLIGHT::QAR1(F),XS(b)
    • P(f);P_SPINP(d),SBLOCK,XR(I)::QAR1(F),XS(b)
  • Tries
    • Try
      • S(A);CHECK,XP(a)
      • Refutation
        • R(h);CHECK,XS(A)
    • Try
      • B(J);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR2(F)
      • Refutation
        • K(c);N_SPINS(b),S_FLIGHT,XR(I)
    • Try
      • R(I);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR2(F)
      • Refutation
        • P(d);P_SPINP(f),XR(I)
  • Actual
    • B(J);
    • Vars
      • K(c);P-FLIGHT::QAR2(F)
      • K(c);N_SPINS(b),P_SPINP(d),S_FLIGHT::QAR1(F),XS(b)
      • K(c);N_SPINS(b),P_SPINR(h),S_FLIGHT,XR(I)::S(A),XP(a)
      • P(f);P_SPINP(d),SBLOCK,XR(I)::QAR1(F),XS(b)
      • R(h);::B(J)+R(I),DCHECK,XP(d)
      • R(h);P_PINP(G)::B(J)+R(I),DCHECK,XP(d)
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