MESON Chess Problem Database

Problem Display
PID: 85655 (4R1b1/bK3NB1/2PNP1p1/Q1Pk3p/1p2p2R/1r1r2p1/8/5B2 w - - 0 1)

Pavlov, Mikhail Aleksandrovich

Intelectualie Egri, 1993

4R1b1/bK3NB1/2PNP1p1/Q1Pk3p/1p2p2R/1r1r2p1/8/5B2

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Bc4#
    • 1...Rd2
      • 2.Bc4#
    • 1...Re3
      • 2.Bc4#
    • 1...Rf3
      • 2.Bc4#
    • 1...Bb6
      • 2.cxb6#
    • 1...e3
      • 2.Bg2#
  • Tries
    • 1.Sxe4?
      • threat
        • 2.Sf6#
      • 1...Kc4
        • 2.Sc3#
      • 1...Rf3
        • 2.Qd8#
      • 1...Bxf7!
    • 1.Bxd3?
      • threat
        • 2.Bc4#
        • 2.Bxe4#
      • 1...exd3
        • 2.Rd4#
      • 1...Rc3
        • 2.Bxe4#
      • 1...e3
        • 2.Bc4#
        • 2.Be4#
        • 2.Rd4#
      • 1...Rxd3!
    • 1.Rg4?
      • threat
        • 2.Rg5#
      • 1...Rf3
        • 2.Bc4#
      • 1...g5
        • 2.Rxg5#
      • 1...hxg4!
    • 1.Rxh5+?
      • 1...g5
        • 2.Rxg5#
      • 1...gxh5!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qg5#
      • 1...Kxc5
        • 2.Qa5#
      • 1...Rf3
        • 2.Sxe4#
      • 1...g5
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(b);OGATE::B(A)
    • B(i);OGATE::QAR(C)+P(D),XB(i)
    • P(e);OGATEB::B(A)
  • Tries
    • Try
      • S(F);XP(e)
      • Threat
        • S(F)
      • Vars
        • K(f);P_SPINR(b),S_FLIGHT::R(B)+S(F)
        • R(b);::QAR(C)
      • Refutation
        • B(j);XS(I)
    • Try
      • B(A);XR(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);OGATE,XB(A)::R1(B)
        • R(a);::B(A),XP(e)
      • Refutation
        • R(a);XB(A)
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • R(b);OGATE::B(A)
        • P(h);::R(B),XP(h)
      • Refutation
        • P(g);XR(B)
    • Try
      • R(B);CHECK,XP(g)
      • Vars
        • P(h);P_SPINP(h)::R(B),XP(h)
      • Refutation
        • P(h);XR(B)
  • Actual
    • Q(C);
    • Threat
      • QAR(C)
    • Vars
      • K(f);OGATEB,P-FLIGHT,XP(D)::QAR2(C)
      • R(b);::QAR(C)+S(F),XP(e)
      • P(h);::QAR(C),XP(h)
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