MESON Chess Problem Database

Problem Display
PID: 146680 (8/2PRP1p1/1p4B1/1N6/p4P2/B1P5/K2PP1P1/2Nkb1Q1 w - - 0 1)

Valuska, Jan

Australian Chess Problem Magazine, 1993

8/2PRP1p1/1p4B1/1N6/p4P2/B1P5/K2PP1P1/2Nkb1Q1

#2

14 + 5

5454 Near Snap 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3?
      • 1...Kxe2
        • 2.Bh5#
      • 1...axb3+!
    • 1.Sd4?
      • 1...Kxd2
        • 2.Sb5#
      • 1...b5!
    • 1.Sd6?
      • 1...Kxd2
        • 2.Sb5#
        • 2.Qd4#
      • 1...b5!
    • 1.Bb4?
      • 1...Kxc1
        • 2.Qxe1#
      • 1...a3!
    • 1.Bd6?
      • 1...Kxc1
        • 2.Qxe1#
      • 1...Kxd2
        • 2.Ba3#
      • 1...a3!
    • 1.Qf2?
      • 1...Bxd2
        • 2.Qg1#
        • 2.Qf1#
      • 1...Bxf2!
  • Keys
    • 1.Sd3!
      • 1...Kc2
        • 2.Sf2#
      • 1...Kxd2
        • 2.Sc1#
      • 1...Kxe2
        • 2.Qxe1#

Anticipated by 110330(1981)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • K(a);N_SPINB(b),OGATEB,S_FLIGHT,XP(E)::B(K)
      • Refutation
        • P(c);CHECK,XS(A)
    • Try
      • S(J);
      • Vars
        • K(a);N_SPINB(b),P-FLIGHT,XP(D)::R(M)+S(J)
      • Refutation
        • P(d);
    • Try
      • S(J);
      • Refutation
        • P(d);
    • Try
      • B(G);
      • Vars
        • K(a);P-FLIGHT,XS(A)::QAR2(B),XB(b)
      • Refutation
        • P(c);
    • Try
      • B(G);
      • Vars
        • K(a);P-FLIGHT,XS(A)::QAR2(B),XB(b)
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XP(D)::R(M)+B(G)
      • Refutation
        • P(c);
    • Try
      • Q(B);N_PINB(b)
      • Refutation
        • B(b);XQ(B)
  • Actual
    • S(A);
    • Vars
      • K(a);N_SPINB(b),S_FLIGHT::B(K)+S(A)
      • K(a);N_SPINB(b),P-FLIGHT,XP(D)::R(M)+S(A)
      • K(a);N_SPINB(b),S_FLIGHT,XP(E)::QAR1(B),XB(b)
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