MESON Chess Problem Database

Problem Display
PID: 11504 (1bR4K/4R3/8/1n2P3/B2p4/6Q1/3pk3/1N2Nb2 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1939

1bR4K/4R3/8/1n2P3/B2p4/6Q1/3pk3/1N2Nb2

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe5+
      • 2.Rxe5#
    • 1...Bd6
      • 2.exd6#
    • 1...Sd6
      • 2.exd6#
    • 1...d1S
      • 2.Rc2#
  • Tries
    • 1.Sg2?
      • threat
        • 2.Sf4#
      • 1...Bxe5+
        • 2.Rxe5#
      • 1...Bxg2!
    • 1.Bxb5+?
      • 1...d3
        • 2.Sc3#
      • 1...Kd1!
    • 1.Rf8?
      • threat
        • 2.Qf2#
      • 1...Bxe5+
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...dxe1Q
        • 2.Qf3#
      • 1...dxe1S
        • 2.Rf2#
      • 1...dxe1B
        • 2.Qf3#
      • 1...dxe1R
        • 2.Rf2#
        • 2.Qf3#
      • 1...d1S!
    • 1.Qg2+?
      • 1...Kxe1
        • 2.Qxd2#
      • 1...Ke3
        • 2.Qf3#
      • 1...Bxg2!
    • 1.Qd3+?
      • 1...Kxe1
        • 2.Qxd2#
      • 1...Kf2!
  • Keys
    • 1.Rf7!
      • threat
        • 2.Qf2#
      • 1...Bxe5+
        • 2.Qxe5#
      • 1...dxe1Q
        • 2.Qf3#
      • 1...dxe1S
        • 2.Rf2#
      • 1...dxe1B
        • 2.Qf3#
      • 1...dxe1R
        • 2.Rf2#
        • 2.Qf3#
      • 1...d1S
        • 2.Rc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(f);CHECK,OGATE,P_SPINB(f),XP(E)::R(F),XB(f)
    • B(f);OGATE::R(F)+P(E),XB(f)
    • S(e);OGATE::R(F)+P(E),XS(e)
    • P(b);OGATEB,SBLOCK::R(G)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • B(f);CHECK,OGATE,P_SPINB(f),XP(E)::R(F),XB(f)
      • Refutation
        • B(a);XS(B)
    • Try
      • B(D);CHECK,XS(e)
      • Vars
        • P(d);P_SPINP(d)::S(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(G);
      • Threat
        • QAR1(C)
      • Vars
        • P(b);SBLOCK,XS(B)::QAB1(C)
        • P(b);SBLOCK,XS(B)::R1(G)
      • Refutation
        • P(b);
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT,XS(B)::QAB1(C),XP(b)
        • K(c);P-FLIGHT::QAR1(C)
      • Refutation
        • B(a);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT,XS(B)::QAB1(C),XP(b)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • R(F);
    • Threat
      • QAR1(C)
    • Vars
      • B(f);CHECK,OGATE,XP(E)::QAR(C),XB(f)
      • P(b);SBLOCK,XS(B)::QAB1(C)
      • P(b);SBLOCK,XS(B)::R1(F)
      • P(b);OGATEB,SBLOCK::R(G)
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