MESON Chess Problem Database

Problem Display
PID: 140182 (R1N5/7Q/2P5/1PrPBB2/1Pk3P1/8/2N5/1RK5 w - - 0 1)

Hoek, Willem

Probleemblad, 1975

R1N5/7Q/2P5/1PrPBB2/1Pk3P1/8/2N5/1RK5

#2

13 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb5
      • 2.Se3#
    • 1...Rxd5
      • 2.Sa3#
  • Tries
    • 1.Se7?
      • threat
        • 2.Sa3#
        • 2.Bd3#
      • 1...Rxd5
        • 2.Sa3#
      • 1...Kxb5!
    • 1.Be4?
      • threat
        • 2.Sa3#
        • 2.Sd6#
      • 1...Rxd5
        • 2.Sa3#
      • 1...Rxc6
        • 2.Sa3#
      • 1...Kxb5!
    • 1.Be6?
      • threat
        • 2.Sa3#
        • 2.Sd6#
      • 1...Rxc6
        • 2.Sa3#
      • 1...Kxb5!
    • 1.Ra5?
      • threat
        • 2.Se3#
        • 2.Sb6#
      • 1...Rxb5
        • 2.Se3#
      • 1...Rxc6
        • 2.Se3#
      • 1...Kxd5!
    • 1.Qg6?
      • 1...Kxd5
        • 2.Qe6#
      • 1...Rxb5
        • 2.Se3#
      • 1...Rxd5
        • 2.Sa3#
      • 1...Rxc6
        • 2.Qxc6#
      • 1...Kxb5!
    • 1.Qg8?
      • threat
        • 2.Sa3#
        • 2.Sd6#
      • 1...Rxc6
        • 2.Sa3#
      • 1...Kxb5!
    • 1.Qh1?
      • threat
        • 2.Sa3#
        • 2.Sd6#
      • 1...Rxd5
        • 2.Sa3#
      • 1...Rxc6
        • 2.Sa3#
      • 1...Kxb5!
    • 1.Qh6?
      • 1...Kxd5
        • 2.Qe6#
      • 1...Rxb5
        • 2.Se3#
      • 1...Rxd5
        • 2.Sa3#
      • 1...Rxc6
        • 2.Qxc6#
      • 1...Kxb5!
    • 1.Qa7?
      • threat
        • 2.Qxc5#
      • 1...Kxb5
        • 2.Sd6#
        • 2.Qxc5#
        • 2.Qa6#
      • 1...Kxd5
        • 2.Qxc5#
      • 1...Rxb5
        • 2.Se3#
        • 2.Qd4#
        • 2.Qa2#
      • 1...Rxd5
        • 2.Sa3#
      • 1...Rxc6!
    • 1.Qe7?
      • threat
        • 2.Qxc5#
      • 1...Kxb5
        • 2.Qxc5#
      • 1...Kxd5
        • 2.Sb6#
        • 2.Qxc5#
        • 2.Qe6#
      • 1...Rxb5
        • 2.Se3#
      • 1...Rxd5
        • 2.Sa3#
      • 1...Rxc6!
    • 1.Qf7?
      • threat
        • 2.Sa3#
        • 2.Sd6#
      • 1...Rxc6
        • 2.Sa3#
      • 1...Kxb5!
  • Keys
    • 1.Qc7!
      • 1...Kxb5
        • 2.Sd6#
      • 1...Kxd5
        • 2.Sb6#
      • 1...Rxb5
        • 2.Se3#
      • 1...Rxd5
        • 2.Sa3#
      • 1...Rxc6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);SBLOCK,XP(F)::S(C)
    • R(b);SBLOCK,XP(G)::S(C)
  • Tries
    • Try
      • S(M);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XP(G)::S(C)
      • Refutation
        • K(a);P_PINS(C),S_FLIGHT,XP(F)
    • Try
      • B(I);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XP(G)::S(C)
        • R(b);XP(J)::S(C)
      • Refutation
        • K(a);P_PINS(C),S_FLIGHT,XP(F)
    • Try
      • B(I);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XP(J)::S(C)
      • Refutation
        • K(a);P_PINS(C),S_FLIGHT,XP(F)
    • Try
      • R(L);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XP(F)::S(C)
        • R(b);XP(J)::S(C)
      • Refutation
        • K(a);P_PINS(C),S_FLIGHT,XP(G)
    • Try
      • Q(K);
      • Vars
        • K(a);OGATEB,P_PINS(C),S_FLIGHT,XP(G)::QAB1(K)
        • R(b);SBLOCK,XP(F)::S(C)
        • R(b);SBLOCK,XP(G)::S(C)
        • R(b);OGATE,XP(J)::QAR2(K),XR(b)
      • Refutation
        • K(a);P_PINS(C),S_FLIGHT,XP(F)
    • Try
      • Q(K);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XP(J)::S(C)
      • Refutation
        • K(a);P_PINS(C),S_FLIGHT,XP(F)
    • Try
      • Q(K);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XP(G)::S(C)
        • R(b);XP(J)::S(C)
      • Refutation
        • K(a);P_PINS(C),S_FLIGHT,XP(F)
    • Try
      • Q(K);
      • Vars
        • K(a);OGATEB,P_PINS(C),S_FLIGHT,XP(G)::QAB1(K)
        • R(b);SBLOCK,XP(F)::S(C)
        • R(b);SBLOCK,XP(G)::S(C)
        • R(b);OGATE,XP(J)::QAR2(K),XR(b)
      • Refutation
        • K(a);P_PINS(C),S_FLIGHT,XP(F)
    • Try
      • Q(K);
      • Threat
        • QAR1(K),XR(b)
      • Vars
        • K(a);P_PINS(C),S_FLIGHT,XP(G)::QAR1(K),XR(b)
        • R(b);SBLOCK,XP(G)::S(C)
      • Refutation
        • R(b);XP(J)
    • Try
      • Q(K);
      • Threat
        • QAR1(K),XR(b)
      • Vars
        • K(a);P_PINS(C),S_FLIGHT,XP(F)::QAR1(K),XR(b)
        • R(b);SBLOCK,XP(F)::S(C)
        • R(b);SBLOCK,XP(G)::S(C)
      • Refutation
        • R(b);XP(J)
    • Try
      • Q(K);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XP(J)::S(C)
      • Refutation
        • K(a);P_PINS(C),S_FLIGHT,XP(F)
  • Actual
    • Q(K);
    • Vars
      • K(a);P_PINS(C),S_FLIGHT,XP(F)::S(M)
      • K(a);P_PINS(C),S_FLIGHT,XP(G)::S(M)
      • R(b);SBLOCK,XP(F)::S(C)
      • R(b);SBLOCK,XP(G)::S(C)
      • R(b);OGATE,P_SPINR(b),XP(J)::QAR2(K),XR(b)
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