MESON Chess Problem Database

Problem Display
PID: 155289 (3R4/r2b4/p3R2Q/3kp3/N1p4p/2P2pPK/2P2N1b/8 w - - 0 1)

Markovtsy, Vassyl Yuriovich

Sachova skladba, 2006

3R4/r2b4/p3R2Q/3kp3/N1p4p/2P2pPK/2P2N1b/8

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Rxd7#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Rxe5#
      • 1...Ke4
        • 2.Rxe5#
      • 1...e4
        • 2.Se3#
        • 2.Re5#
        • 2.Rd6#
      • 1...Bxg3!
    • 1.Qf6?
      • threat
        • 2.Qxe5#
      • 1...e4
        • 2.Qe5#
        • 2.Qf5#
      • 1...Bxg3!
  • Keys
    • 1.Re8!
      • threat
        • 2.Qd2#
      • 1...Bxe6+
        • 2.Qxe6#
      • 1...Bxa4
        • 2.Rxe5#
      • 1...Bxe8
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(h);N_GUARD::R(I),XB(i)
  • Tries
    • Try
      • S(B);N_SPINR(G)
      • Threat
        • R1(G),XP(f)
      • Vars
        • K(e);N_SPINB(i),P_SPINP(f),S_FLIGHT::R1(G),XP(f)
      • Refutation
        • B(a);XP(D)
    • Try
      • Q(H);
      • Threat
        • QAR1(H),XP(f)
      • Refutation
        • B(a);XP(D)
  • Actual
    • R(I);N_PINB(i)
    • Threat
      • QAR(H)
    • Vars
      • B(i);CHECK,OGATE,XR(G)::QAB1(H),XB(i)
      • B(i);N_PINR(G),XS(F)::R1(G),XP(f)
      • B(i);N_PINR(G),XR(I)::R1(G)
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