MESON Chess Problem Database

Problem Display
PID: 140531 (4R1bR/6p1/Q3r1k1/2P3B1/4N3/2PB2N1/3K4/8 w - - 0 1)

Robert, Philippe

StrateGems, 2006

4R1bR/6p1/Q3r1k1/2P3B1/4N3/2PB2N1/3K4/8

#2

10 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kf7
      • 2.Qxe6#
    • 1...Bh7
      • 2.Qxe6#
  • Tries
    • 1.Sf2+?
      • 1...Kf7
        • 2.Qxe6#
      • 1...Kxg5!
    • 1.Be2?
      • threat
        • 2.Bh5#
      • 1...Kf7
        • 2.Qxe6#
      • 1...Rd6+!
    • 1.Bd8?
      • threat
        • 2.Sg5#
      • 1...Kf7
        • 2.Qxe6#
      • 1...Bh7
        • 2.Qxe6#
      • 1...Rf6!
    • 1.Rxe6+?
      • 1...Bxe6
        • 2.Qxe6#
      • 1...Kf7!
    • 1.Rh5?
      • 1...Kf7
        • 2.Qxe6#
      • 1...Rxa6
        • 2.Sd6#
      • 1...Rb6
        • 2.Sd6#
      • 1...Rc6
        • 2.Sd6#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Bf7
        • 2.Sf2#
      • 1...Bh7
        • 2.Qxe6#
      • 1...Rf6!
    • 1.Rh6+?
      • 1...Kf7
        • 2.Qxe6#
      • 1...gxh6!
  • Keys
    • 1.Bh4!
      • 1...Kf7
        • 2.Qxe6#
      • 1...Rxa6
        • 2.Sd6#
      • 1...Bh7
        • 2.Qxe6#
      • 1...Rb6
        • 2.Sd6#
      • 1...Rc6
        • 2.Sd6#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Rf6
        • 2.Sg5#
      • 1...Bf7
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINR(a),S_FLIGHT::QAB1(H),XR(a)
    • B(d);N_GUARD::QAR2(H),XR(a)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);N_SPINR(a),S_FLIGHT::QAB1(H),XR(a)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT,XB(G)
    • Try
      • B(C);
      • Threat
        • B(C)
      • Vars
        • K(b);N_SPINR(a),S_FLIGHT::QAB1(H),XR(a)
      • Refutation
        • R(a);CHECK
    • Try
      • B(G);
      • Threat
        • B(C)+S(E)
      • Vars
        • K(b);N_SPINR(a),S_FLIGHT::QAB1(H),XR(a)
        • B(d);N_GUARD::QAR2(H),XR(a)
      • Refutation
        • R(a);
    • Try
      • R(I);CHECK,XR(a)
      • Vars
        • B(d);OGATE,P_SPINB(d),XR(I)::QAR2(H),XB(d)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(J);
      • Vars
        • K(b);N_SPINR(a),S_FLIGHT::QAB1(H),XR(a)
        • R(a);N_GUARD,N_SPINR(a),XQ(H)::B(C)+S(E)
        • R(a);N_GUARD::B(C)+S(E)
        • R(a);N_GUARD,P_PINB(C)::B(C)+S(E),XR(a)
        • B(d);SBLOCK::B(C)+S(E)
        • B(d);N_GUARD::QAR2(H),XR(a)
      • Refutation
        • R(a);
    • Try
      • R(J);CHECK
      • Vars
        • K(b);N_SPINR(a),S_FLIGHT::QAB1(H),XR(a)
      • Refutation
        • P(c);XR(J)
  • Actual
    • B(G);
    • Vars
      • K(b);N_SPINR(a),S_FLIGHT::QAB1(H),XR(a)
      • R(a);N_GUARD,N_SPINR(a),XQ(H)::B(C)+S(E)
      • B(d);N_GUARD::QAR2(H),XR(a)
      • R(a);N_GUARD::B(C)+S(E)
      • R(a);N_GUARD,P_PINB(C)::B(C)+S(E),XR(a)
      • R(a);::B(C)+S(E)
      • B(d);SBLOCK::B(C)+S(E)
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