MESON Chess Problem Database

Problem Display
PID: 234243 (QR6/1pR3pK/qp5p/1P2p2r/5b2/6p1/k1NN4/rbB5 w - - 0 1)

Kipping, Cyril Stanley

The Chess Review, 1938

QR6/1pR3pK/qp5p/1P2p2r/5b2/6p1/k1NN4/rbB5

#2

8 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Qxa3#
    • 1...Qa4
      • 2.Qxa4#
    • 1...Qa7
      • 2.Qxa7#
    • 1...Qxa8
      • 2.Rxa8#
    • 1...Rf5
      • 2.Sb4#
    • 1...Bxc2+
      • 2.Rxc2#
    • 1...e4
      • 2.Sb4#
    • 1...g6
      • 2.Sb4#
  • Tries
    • 1.Kg8?
      • threat
        • 2.Sb4#
      • 1...Bxc2
        • 2.Rxc2#
      • 1...Bxd2!
    • 1.Kh8?
      • threat
        • 2.Sb4#
      • 1...Bxc2
        • 2.Rxc2#
      • 1...Bxd2!
    • 1.Rbxb7?
      • threat
        • 2.Qxa6#
        • 2.Qg8#
      • 1...Bxc2+
        • 2.Rxc2#
      • 1...Bxd2
        • 2.Qg8#
      • 1...Qa5
        • 2.Qg8#
      • 1...Qa3
        • 2.Qxa3#
      • 1...Qa4
        • 2.Qxa4#
      • 1...Qa7
        • 2.Rxa7#
        • 2.Qxa7#
        • 2.Qg8#
      • 1...Rf5
        • 2.Sb4#
        • 2.Qxa6#
      • 1...e4
        • 2.Sb4#
        • 2.Qxa6#
      • 1...Qxa8!
    • 1.bxa6?
      • threat
        • 2.axb7#
      • 1...Bxc2+
        • 2.Rxc2#
      • 1...bxa6
        • 2.Qd5#
        • 2.Qxa6#
      • 1...e4
        • 2.Sb4#
      • 1...Bxd2!
  • Keys
    • 1.Rh8!
      • threat
        • 2.Qg8#
      • 1...Bxc2+
        • 2.Rxc2#
      • 1...Qxa8
        • 2.Rxa8#
      • 1...Qa3
        • 2.Qxa3#
      • 1...Qa4
        • 2.Qxa4#
      • 1...Rf5
        • 2.Sb4#
      • 1...e4
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • Q(h);OGATE::QAR1(G),XQ(h)
    • Q(h);OGATE::QAR2(G),XQ(h)
    • Q(h);OGATEB::QAR(G),XQ(h)
    • Q(h);N_SPINQ(h),OGATE,XQ(G)::R(H),XQ(h)
    • R(g);N_PINS(B)::S(B)
    • B(b);CHECK,OGATE,XS(B)::R(E),XB(b)
    • P(f);N_PINS(B)::S(B)
    • P(l);N_PINS(B)::S(B)
  • Tries
    • Try
      • K(F);N_SPINS(B),S_FLIGHT
      • Threat
        • S(B)
      • Vars
        • B(b);OGATE,XS(B)::R(E),XB(b)
      • Refutation
        • B(e);XS(C)
    • Try
      • K(F);N_SPINS(B),P-FLIGHT
      • Threat
        • S(B)
      • Vars
        • B(b);OGATE,XS(B)::R(E),XB(b)
      • Refutation
        • B(e);XS(C)
    • Try
      • R(H);XP(k)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);CHECK,OGATE,XS(B)::R(E),XB(b)
        • B(e);XS(C)::QAB(G)
        • Q(h);::QAB(G)
        • Q(h);OGATE::QAR1(G),XQ(h)
        • Q(h);OGATE::QAR2(G),XQ(h)
      • Refutation
        • Q(h);N_SPINQ(h),XQ(G)
    • Try
      • P(D);XQ(h)
      • Threat
        • QAR(G)+P(D),XP(k)
      • Vars
        • B(b);CHECK,OGATE,XS(B)::R(E),XB(b)
        • P(f);N_PINS(B)::S(B)
      • Refutation
        • B(e);XS(C)
  • Actual
    • R(H);
    • Threat
      • QAB(G)
    • Vars
      • B(b);CHECK,OGATE,XS(B)::R(E),XB(b)
      • Q(h);N_SPINQ(h),OGATE,XQ(G)::R(H),XQ(h)
      • Q(h);OGATE::QAR1(G),XQ(h)
      • Q(h);OGATE::QAR2(G),XQ(h)
      • R(g);N_PINS(B)::S(B)
      • P(f);N_PINS(B)::S(B)
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