MESON Chess Problem Database

Problem Display
PID: 95864 (B2b1Q2/2RNPP2/K2kP1r1/8/8/8/8/8 w - - 0 1)

Radomirovic, Miodrag

Politika Meredith Ty., 1998

B2b1Q2/2RNPP2/K2kP1r1/8/8/8/8/8

#2

8 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc7
      • 2.exd8Q#
    • 1...Rxe6
      • 2.e8S#
    • 1...Bxc7
      • 2.e8Q#
      • 2.e8R#
  • Tries
    • 1.Bf3?
      • threat
        • 2.Rc6#
      • 1...Kxc7
        • 2.exd8Q#
      • 1...Rxe6
        • 2.e8S#
      • 1...Bxc7
        • 2.e8Q#
        • 2.e8R#
      • 1...Kxe6!
    • 1.exd8R+?
      • 1...Kxc7
        • 2.Rc8#
      • 1...Kxe6!
    • 1.e8Q+?
      • 1...Kxc7
        • 2.Qc5#
        • 2.Qxd8#
      • 1...Be7!
    • 1.e8R+?
      • 1...Kxc7
        • 2.Qc5#
      • 1...Be7!
  • Keys
    • 1.Be4!
      • threat
        • 2.Rc6#
      • 1...Kxe6
        • 2.exd8S#
      • 1...Kxc7
        • 2.exd8Q#
      • 1...Rxe6
        • 2.e8S#
      • 1...Bxc7
        • 2.e8Q#
        • 2.e8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P_PINP(B),S_FLIGHT,XR(C)::PXB(c)=Q
    • R(b);SBLOCK,XP(B)::P=S
    • B(c);N_GUARD,SBLOCK,XR(C)::P=Q
  • Tries
    • Try
      • B(G);
      • Threat
        • R1(C)
      • Vars
        • K(a);P_PINP(B),S_FLIGHT,XR(C)::PXB(c)=Q
        • R(b);SBLOCK,XP(B)::P=S
        • B(c);N_GUARD,SBLOCK,XR(C)::P=Q
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • P(E);CHECK,XB(c)
      • Vars
        • K(a);P_PINP(B),S_FLIGHT,XR(C)::R1(E)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • P(E);CHECK
      • Refutation
        • B(c);P_SPINB(c)
    • Try
      • P(E);CHECK
      • Vars
        • K(a);OGATE,P_PINP(B),S_FLIGHT,XR(C)::QAR2(H)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • B(G);
    • Threat
      • R1(C)
    • Vars
      • K(a);P-FLIGHT,XP(B)::PXB(c)=S
      • K(a);P_PINP(B),S_FLIGHT,XR(C)::PXB(c)=Q
      • R(b);SBLOCK,XP(B)::P=S
      • B(c);N_GUARD,SBLOCK,XR(C)::P=Q
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