MESON Chess Problem Database

Problem Display
PID: 153277 (8/8/8/1K6/4k3/2BNp1R1/1Q6/8 w - - 0 1)

Lincoln, Robert A

StrateGems, 2012

8/8/8/1K6/4k3/2BNp1R1/1Q6/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Be1?
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...e2
        • 2.Qe5#
      • 1...Kxd3!
    • 1.Bb4?
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...e2
        • 2.Qe5#
      • 1...Kxd3!
    • 1.Ba5?
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...e2
        • 2.Qe5#
      • 1...Kxd3!
    • 1.Bf6?
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...e2
        • 2.Qe5#
      • 1...Kxd3!
    • 1.Bg7?
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...e2
        • 2.Qe5#
      • 1...Kxd3!
    • 1.Bh8?
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...e2
        • 2.Qe5#
      • 1...Kxd3!
    • 1.Rg5?
      • 1...Kf3
        • 2.Qg2#
      • 1...e2
        • 2.Qxe2#
      • 1...Kxd3!
    • 1.Qa2?
      • 1...Kf5
        • 2.Qd5#
      • 1...e2
        • 2.Qe6#
      • 1...Kxd3!
    • 1.Qe2?
      • 1...Kf5
        • 2.Qg4#
      • 1...Kd5!
    • 1.Qg2+?
      • 1...Kf5
        • 2.Qd5#
      • 1...Kxd3!
    • 1.Qb3?
      • 1...Kf5
        • 2.Qd5#
      • 1...e2
        • 2.Qe6#
      • 1...Kxd3!
    • 1.Qb4+?
      • 1...Kd5
        • 2.Sf4#
      • 1...Kf5
        • 2.Qg4#
      • 1...Kxd3!
  • Keys
    • 1.Bd2!
      • 1...Kxd3
        • 2.Rxe3#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...exd2
        • 2.Qe5#
      • 1...e2
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • P(a);::QAR1(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT,XS(C)
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • P(a);::QAR1(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT,XS(C)
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • P(a);::QAR1(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT,XS(C)
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • P(a);::QAR1(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT,XS(C)
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • P(a);::QAR1(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT,XS(C)
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • P(a);::QAR1(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT,XS(C)
    • Try
      • R(D);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT,XS(C)
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
        • P(a);::QAR2(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT,XS(C)
    • Try
      • Q(A);P_PINP(a)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT,XS(C)
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
        • P(a);::QAR2(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT,XS(C)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::S(C)
        • K(b);OGATE,S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT,XS(C)
  • Actual
    • B(B);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT,XS(C)::R1(D),XP(a)
      • K(b);S_FLIGHT::QAR1(A)
      • P(a);XB(B)::QAR1(A)
      • P(a);::QAR1(A)
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