MESON Chess Problem Database

Problem Display
PID: 52657 (K2N4/BQpP4/2Pk1P2/4R1n1/2q1pP2/b1N5/2n5/8 w - - 0 1)

Slagmolen, Cornelis

3rd Comm., Het Belgisch Schaakbord (L'Echiquier Belge), 1988-1989

K2N4/BQpP4/2Pk1P2/4R1n1/2q1pP2/b1N5/2n5/8

#2

10 + 7

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Rd5#
    • 1...Qa2
      • 2.Sb5#
    • 1...Qe2
      • 2.Rd5#
    • 1...Qb5
      • 2.Sxb5#
    • 1...Qd5
      • 2.Rxd5#
    • 1...Qa6
      • 2.Rd5#
    • 1...Qe6
      • 2.Sb5#
    • 1...Qf7
      • 2.Sb5#
    • 1...Qg8
      • 2.Sb5#
    • 1...Qa4
      • 2.Rd5#
    • 1...Qb4
      • 2.Rd5#
    • 1...Qd4
      • 2.Sb5#
    • 1...Qxc6
      • 2.Qxc6#
    • 1...Se6
      • 2.Sf7#
  • Tries
    • 1.Kb8?
      • threat
        • 2.Qxc7#
      • 1...Qxc6
        • 2.Qxc6#
      • 1...Qb5
        • 2.Sxb5#
      • 1...Qb4
        • 2.Rd5#
      • 1...Se6
        • 2.Sf7#
      • 1...Qb3!
    • 1.Sd5?
      • threat
        • 2.Qxc7#
      • 1...Qxc6
        • 2.Qxc6#
      • 1...Se6
        • 2.Sf7#
      • 1...Qxd5!
    • 1.Sf7+?
      • 1...Qxf7
        • 2.Sb5#
      • 1...Sxf7!
    • 1.Re6+?
      • 1...Sxe6
        • 2.Sf7#
      • 1...Qxe6!
    • 1.Qa6?
      • threat
        • 2.Sb7#
      • 1...Qxc6+
        • 2.Qxc6#
      • 1...Qxa6
        • 2.Rd5#
      • 1...Qb5
        • 2.Sxb5#
      • 1...Qg8
        • 2.Sb5#
      • 1...Qb4
        • 2.Rd5#
      • 1...Qb3!
    • 1.Qb5?
      • threat
        • 2.Sb7#
      • 1...Qxc6+
        • 2.Qxc6#
      • 1...Qxb5
        • 2.Sxb5#
      • 1...Qg8!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Sb7#
      • 1...Qxc6+
        • 2.Qxc6#
      • 1...cxb6
        • 2.Bb8#
      • 1...Qa6
        • 2.Rd5#
      • 1...Qg8
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • Q(c);N_GUARD::R1(C)
    • Q(c);N_GUARD::S(A)
    • Q(c);N_GUARD::S(A),XQ(c)
    • Q(c);N_GUARD::R1(C),XQ(c)
    • Q(c);N_GUARD,P_PINB(F)::R1(C)
    • Q(c);N_GUARD,P_PINS(J)::S(A)
    • Q(c);OGATE,P_PINQ(G),XP(D)::QAR1(G),XQ(c)
    • S(e);N_GUARD,S_CUTQ(c)::S(J)
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Threat
        • QAB1(G),XP(g)
      • Vars
        • Q(c);OGATE,XP(D)::QAR1(G),XQ(c)
        • Q(c);N_GUARD,P_PINQ(G)::S(A),XQ(c)
        • Q(c);N_GUARD,P_PINQ(G)::R1(C)
        • S(e);N_GUARD,S_CUTQ(c)::S(J)
      • Refutation
        • Q(c);P_PINQ(G)
    • Try
      • S(A);
      • Threat
        • QAB1(G),XP(g)
      • Vars
        • Q(c);OGATE,P_PINQ(G),XP(D)::QAR1(G),XQ(c)
        • S(e);N_GUARD::S(J)
      • Refutation
        • Q(c);XS(A)
    • Try
      • S(J);CHECK
      • Vars
        • Q(c);XS(J)::S(A)
      • Refutation
        • S(e);XS(J)
    • Try
      • R(C);CHECK
      • Vars
        • S(e);SBLOCK,XR(C)::S(J)
      • Refutation
        • Q(c);XR(C)
    • Try
      • Q(G);
      • Threat
        • S(J)
      • Vars
        • Q(c);CHECK,OGATE,P_SPINQ(c),XP(D)::QAR1(G),XQ(c)
        • Q(c);N_GUARD,P_PINB(F),XQ(G)::R1(C)
        • Q(c);N_GUARD::S(A),XQ(c)
        • Q(c);N_GUARD,P_PINS(J)::S(A)
        • Q(c);N_GUARD::R1(C)
      • Refutation
        • Q(c);
    • Try
      • Q(G);
      • Threat
        • S(J)
      • Vars
        • Q(c);CHECK,OGATE,XP(D)::QAR1(G),XQ(c)
        • Q(c);XQ(G)::S(A),XQ(c)
      • Refutation
        • Q(c);P_PINS(J)
  • Actual
    • Q(G);
    • Threat
      • S(J)
    • Vars
      • Q(c);CHECK,OGATE,P_SPINQ(c),XP(D)::QAR1(G),XQ(c)
      • P(g);OGATEB,XQ(G)::B(F)
      • Q(c);N_GUARD,P_PINB(F)::R1(C)
      • Q(c);N_GUARD,P_PINS(J)::S(A)
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