MESON Chess Problem Database

Problem Display
PID: 147868 (5bB1/2N5/P6p/1pPRBp1q/2k2p2/4P3/1KN1b1Q1/2R5 w - - 0 1)

Handloser, Ralf Chris

4th Comm., Probleemblad, 2012

5bB1/2N5/P6p/1pPRBp1q/2k2p2/4P3/1KN1b1Q1/2R5

#2

11 + 8

102 Probleemblad 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qg6
      • 2.Qxe2#
    • 1...Qf7
      • 2.Qxe2#
    • 1...Qe8
      • 2.Qxe2#
    • 1...Qh1
      • 2.Qxe2#
    • 1...Qh3
      • 2.Qxe2#
    • 1...Qh4
      • 2.Qxe2#
    • 1...Qg5
      • 2.Qxe2#
    • 1...Bxc5
      • 2.Rd4#
    • 1...b4
      • 2.Sa1#
      • 2.Se1#
      • 2.Sa3#
  • Tries
    • 1.Sd4+?
      • 1...Kd3
        • 2.Sxf5#
      • 1...Kb4!
    • 1.Se6?
      • threat
        • 2.Rd4#
      • 1...b4
        • 2.Sa3#
      • 1...Bxc5!
    • 1.Bc3?
      • threat
        • 2.Sa3#
      • 1...Bxc5
        • 2.Rd4#
      • 1...b4!
    • 1.Rd3+?
      • 1...Kxd3
        • 2.Qd5#
      • 1...Qf7
        • 2.Rc3#
      • 1...Kxc5!
    • 1.Rd6+?
      • 1...Kxc5
        • 2.Rc6#
        • 2.Qd5#
        • 2.Qc6#
      • 1...Qf7!
    • 1.Rd7+?
      • 1...Kxc5
        • 2.Bd4#
      • 1...Qf7!
    • 1.Rd8+?
      • 1...Kxc5
        • 2.Bd4#
      • 1...Qf7!
  • Keys
    • 1.Sa8!
      • threat
        • 2.Sb6#
      • 1...Bxc5
        • 2.Rd4#
      • 1...b4
        • 2.Sa3#
      • 1...Qg6
        • 2.Qxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(f);N_GUARD::QAB(D),XB(a)
    • B(h);SBLOCK,XP(F)::B(K)+R(G),DCHECK
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);S_FLIGHT::R(G)+S(C),XP(e)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(J);
      • Threat
        • R1(G)
      • Vars
        • P(d);SBLOCK::R(A)+S(C),DCHECK
      • Refutation
        • B(h);XP(F)
    • Try
      • B(H);
      • Threat
        • S(C)
      • Vars
        • B(h);SBLOCK,XP(F)::B(K)+R(G),DCHECK
      • Refutation
        • P(d);
    • Try
      • R(G);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(G)::QAR2(D)
        • Q(f);P_SPINQ(f)::R1(G)
      • Refutation
        • K(b);P-FLIGHT,XP(F)
    • Try
      • R(G);CHECK
      • Refutation
        • Q(f);P_SPINQ(f)
    • Try
      • R(G);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(F)::B(H)
      • Refutation
        • Q(f);P_SPINQ(f)
    • Try
      • R(G);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(F)::B(H)
      • Refutation
        • Q(f);P_SPINQ(f)
  • Actual
    • S(J);
    • Threat
      • S(J)
    • Vars
      • B(h);SBLOCK,XP(F)::B(K)+R(G),DCHECK
      • P(d);SBLOCK::R(A)+S(C),DCHECK
      • Q(f);N_GUARD::QAB(D),XB(a)
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