MESON Chess Problem Database

Problem Display
PID: 267427 (2b5/p1K1R3/1p2p3/1Q4p1/3k1nR1/1Pbr4/1n1P1P2/BB6 w - - 0 1)

Zenkov, V

Zadachi i Etyudi, 2013

2b5/p1K1R3/1p2p3/1Q4p1/3k1nR1/1Pbr4/1n1P1P2/BB6

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.dxe3#
      • 2.fxe3#
    • 1...e5
      • 2.Qxe5#
  • Tries
    • 1.Rxe6?
      • threat
        • 2.Qe5#
      • 1...Re3
        • 2.Rd6#
        • 2.dxe3#
        • 2.fxe3#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Bxe6!
  • Keys
    • 1.Kd6!
      • threat
        • 2.Qe5#
      • 1...Ke4+
        • 2.Qd5#
      • 1...Bb4+
        • 2.Qxb4#
      • 1...Sc4+
        • 2.Qxc4#
      • 1...Re3
        • 2.dxe3#
        • 2.fxe3#
      • 1...e5
        • 2.Qd5#
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(h);::QAB1(G),XP(h)
  • Tries
    • Try
      • R(I);XP(h)
      • Threat
        • QAB1(G)
      • Vars
        • S(a);N_GUARD,P_SPINB(b)::QAR1(G),XS(a)
      • Refutation
        • B(j);XR(I)
  • Actual
    • K(H);S_FLIGHT
    • Threat
      • QAB1(G)
    • Vars
      • K(d);CHECK,P-FLIGHT,P_SPINP(h),P_SPINR(c)::QAB1(G)
      • B(b);CHECK,N_GUARD,N_SPINS(e),P_SPINS(a)::QAR2(G),XB(b)
      • S(a);CHECK,N_GUARD,P_SPINB(b)::QAR1(G),XS(a)
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