MESON Chess Problem Database

Problem Display
PID: 42199 (5b2/2p1R3/2k1KpRp/4p3/3P4/1Q5p/6qB/7B w - - 0 1)

Mansfield, Comins

2nd Prize, Pelle MT, 1966-1967

5b2/2p1R3/2k1KpRp/4p3/3P4/1Q5p/6qB/7B

#2

7 + 8

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Bxe4#
    • 1...Qd5+
      • 2.Bxd5#
    • 1...exd4
      • 2.Rxc7#
    • 1...e4
      • 2.Rxc7#
    • 1...f5
      • 2.Kxe5#
      • 2.Kxf5#
      • 2.Kf7#
  • Tries
    • 1.Bxg2+?
      • 1...e4
        • 2.Bxe4#
        • 2.Rxc7#
      • 1...hxg2!
    • 1.Bxe5?
      • threat
        • 2.Rxc7#
      • 1...Qd5+
        • 2.Bxd5#
      • 1...fxe5
        • 2.Kxe5#
        • 2.Kf5#
        • 2.Kf7#
      • 1...Bxe7!
    • 1.Rxf6?
      • threat
        • 2.Kxe5#
        • 2.Kf5#
        • 2.Kf7#
      • 1...Qd5+
        • 2.Kf5#
        • 2.Bxd5#
      • 1...Bxe7
        • 2.Kxe7#
      • 1...exd4
        • 2.Rxc7#
      • 1...Qf3
        • 2.Kxe5#
        • 2.Kf7#
      • 1...Qe4
        • 2.Kf7#
        • 2.Bxe4#
      • 1...e4
        • 2.Ke5#
        • 2.Kf5#
        • 2.Kf7#
        • 2.Rxc7#
      • 1...Bg7!
    • 1.Qb8?
      • threat
        • 2.Rxc7#
      • 1...Qd5+
        • 2.Bxd5#
      • 1...Bxe7!
  • Keys
    • 1.Kxf6!
      • threat
        • 2.Kxe5#
        • 2.Kf5#
        • 2.Kf7#
      • 1...Qf3+
        • 2.Kxe5#
      • 1...Bxe7+
        • 2.Kxe7#
      • 1...Bg7+
        • 2.Kxg7#
      • 1...Kd6
        • 2.Qe6#
      • 1...exd4
        • 2.Rxc7#
      • 1...Qe4
        • 2.Kf7#
      • 1...Qd5
        • 2.Kf5#
      • 1...e4
        • 2.Rxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(a);OGATE::B(A),XQ(a)
    • Q(a);CHECK,OGATE::B(A),XQ(a)
    • P(c);XP(D)::R1(G),XP(g)
    • P(c);N_SPINQ(a)::R1(G),XP(g)
  • Tries
    • Try
      • B(A);CHECK,XQ(a)
      • Refutation
        • P(b);XB(A)
    • Try
      • B(B);XP(c)
      • Threat
        • R1(G),XP(g)
      • Vars
        • Q(a);CHECK,OGATE::B(A),XQ(a)
      • Refutation
        • B(h);XR(G)
    • Try
      • R(F);XP(e)
      • Threat
        • DUALS(3)
      • Vars
        • B(h);XR(G)::R(F)+K(E),XB(h)
        • P(c);XP(D)::R1(G),XP(g)
      • Refutation
        • B(h);
    • Try
      • Q(C);
      • Threat
        • R1(G),XP(g)
      • Vars
        • Q(a);CHECK,OGATE::B(A),XQ(a)
      • Refutation
        • B(h);XR(G)
  • Actual
    • K(E);P-FLIGHT,XP(e)
    • Threat
      • DUALS(3)
    • Vars
      • Q(a);CHECK::R(F)+K(E),XP(c)
      • B(h);CHECK,XR(G)::R(F)+K(E),XB(h)
      • B(h);CHECK::R(F)+K(E),XB(h)
      • K(d);N_SPINQ(a),P-FLIGHT,P_SPINP(c)::QAR1(C)
      • P(c);XP(D)::R1(G),XP(g)
      • Q(a);::R(F)+K(E)
      • P(c);N_SPINQ(a)::R1(G),XP(g)
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